Capacitive touch panel and method of forming the same

Abstract

A capacitive touch panel and a touch display panel using the same are provided. The capacitive touch panel includes a substrate, a plurality of sensing structures and a metal oxide. Each sensing structure includes a plurality of sensing units and a plurality of bridge wires, and two adjacent sensing units are connected by a corresponding bridge wire. The metal oxide is formed on at least one of the bridge wires. The metal oxide is configured to reduce reflection of a light incident to the metal oxide.

What is claimed is: 
     
         1 . A capacitive touch panel, comprising:
 a substrate;   a plurality of sensing structures, wherein each sensing structure comprises a plurality of sensing units and a plurality of bridge wires, and two adjacent sensing units are connected by a corresponding bridge wire; and   a metal oxide formed on at least one of the bridge wires, wherein the metal oxide is configured to reduce reflection of a light incident to the metal oxide.   
     
     
         2 . The capacitive touch panel according to  claim 1 , wherein each bridge wire has an upper surface and a side face, and the metal oxide is formed on at least one of the upper surface and the side face of at least one of the bridge wires. 
     
     
         3 . The capacitive touch panel according to  claim 1 , wherein a thickness of the metal oxide ranges from 10 nanometers to 100 nanometers. 
     
     
         4 . The capacitive touch panel according to  claim 1 , wherein the metal oxide comprises an oxide of the bridge wire. 
     
     
         5 . The capacitive touch panel according to  claim 4 , wherein the metal oxide comprises aluminum oxide, molybdenum oxide, titanium dioxide, copper oxide or silver oxide. 
     
     
         6 . A method of forming a capacitive touch panel, comprising:
 forming a plurality of sensing structures on a substrate, wherein each sensing structure comprises a plurality of sensing units and a plurality of bridge wires, and two adjacent sensing units are connected by a corresponding bridge wire; and   forming a metal oxide on at least one of the bridge wires, wherein the metal oxide is configured to reduce reflection of a light incident to the metal oxide.   
     
     
         7 . The method of forming the capacitive touch panel according to  claim 6 , wherein the step of forming the metal oxide comprises:
 using oxygen in a sputtering process or a depositing process of the material of the bridge wires.   
     
     
         8 . The method of forming the capacitive touch panel according to  claim 7 , wherein the step of forming the metal oxide further comprises:
 using ambient air for oxidizing the bridge wires after the sputtering process or the depositing process.   
     
     
         9 . The method of forming the capacitive touch panel according to  claim 7 , wherein the step of forming the metal oxide further comprises:
 performing an oxygen plasma treatment after the sputtering process or the depositing process.   
     
     
         10 . The method of forming the capacitive touch panel according to  claim 6 , wherein each bridge wire has an upper surface and a side face, and the metal oxide is formed on at least one of the upper surface and the side face of at least one of the bridge wires. 
     
     
         11 . The method of forming the capacitive touch panel according to  claim 6 , wherein a thickness of the metal oxide ranges from 10 nanometers to 100 nanometers. 
     
     
         12 . The method of forming the capacitive touch panel according to  claim 6 , wherein the metal oxide comprises an oxide of the bridge wire. 
     
     
         13 . The method of forming the capacitive touch panel according to  claim 12 , wherein the metal oxide comprises aluminum oxide, molybdenum oxide, titanium dioxide, copper oxide or silver oxide. 
     
     
         14 . A capacitive touch panel, comprising:
 a substrate;   a plurality of sensing structures, wherein each sensing structure comprises a plurality of sensing units and a plurality of bridge wires, and two adjacent sensing units are connected by a corresponding bridge wire; and   a metal oxide formed on at least one of the bridge wires, wherein the metal oxide is configured to generate a light interference phenomena for reducing reflection of alight incident to the metal oxide.   
     
     
         15 . The capacitive touch panel according to  claim 14 , wherein each bridge wire has an upper surface and a side face, and the metal oxide is formed on at least one of the upper surface and the side face of at least one of the bridge wires. 
     
     
         16 . The capacitive touch panel according to  claim 14 , wherein a thickness of the metal oxide ranges from 10 nanometers to 100 nanometers. 
     
     
         17 . The capacitive touch panel according to  claim 14 , wherein the metal oxide comprises an oxide of the bridge wire. 
     
     
         18 . The capacitive touch panel according to  claim 17 , wherein the metal oxide comprises aluminum oxide, molybdenum oxide, titanium dioxide, copper oxide or silver oxide.